Figure 1. Relationship between glucose level and insulin secretory rates (ISR) and between glucose level and the product of ISR and insulin sensitivity index (Si) during intravenous glucose tolerance test (Filled circles: PCOS with a family history of diabetes mellitus type 2; open circles: PCOS without a family history of diabetes mellitus type 2; triangle: women without PCOS who have a family history of diabetes mellitus type 2). With permission from reference [31].